Solvent for electronic cigarette liquid and an electronic cigarette liquid

ABSTRACT

The present invention provides a solvent for electronic cigarette liquid, comprising sorbitol. In the present invention, sorbitol is used as the solvent for electronic cigarette liquid. The electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention is not greasy and free of miscellaneous taste, and therefore provides relatively higher comfort level during smoking. Further, the electronic cigarette liquid provided by the present invention may further comprise one or more of propylene glycol, glycerol, and mannitol. Due to the effects of propylene glycol, glycerol and mannitol, the sorbitol makes the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention generate a relatively greater amount of smoke, improve the experience of the smoker, and provide a thick and full experience, a smooth mouthfeel without any miscellaneous taste, and a relatively higher comfort level during smoking. Furthermore, all the components in the solvent for electronic cigarette liquid provided by the present invention are of food grade, and are harmless to the body of the smoker.

This application claims the priority of the China Patent Application No. 201310625207.3, filed with the Patent Office of China on Nov. 28, 2013, titled “A SOLVENT FOR ELECTRONIC CIGARETTE LIQUID AND AN ELECTRONIC CIGARETTE LIQUID”, the contents of which are incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to the technical field of electronic cigarette, and particularly to a solvent for electronic cigarette liquid and an electronic cigarette liquid.

BACKGROUND OF THE INVENTION

An electronic cigarette liquid is an essence extracted from a plant, to which an edible flavor is added. It has a strong antioxidant activity, and is free of harmful substances such as carbon monoxide and tar. The electronic cigarette liquid mainly comprises a solvent, a tobacco flavor and/or fragrance, and a tobacco extract. The traditional tobacco smoke contains toxic substances such as carbon monoxide, nitrous oxide, formaldehyde, ethanol, methane, toluene, hydrogen cyanide, lead, aluminum, zinc, magnesium, etc., and carcinogenic substances such as benzopyrene, chloroethylene, nitrosamine, polycyclic aromatic hydrocarbons, nitrosotoluene, cadmium, nickle, polonium 210, etc. However, the electronic cigarette liquid is heated by electric heating, in order to atomize a solution comprising a flavor into atomized particles. Smoke can be generated upon suction, which provides a feeling of smoking. However, it neither burns nor generates new harmful substances. Therefore, the electronic cigarette liquid is healthier than the traditional cigarettes. Using of the electronic cigarette liquid instead of the traditional cigarette can reduce harm and avoid pollution of second-hand smoking, and represents a great progress in the development of tobacco.

The electronic cigarette liquid is a liquid utilized in the electronic cigarette cartridge. An electronic cigarette comprises a battery, an atomizer and a cartridge, and works as follows: the cartridge directs the liquid into the atomizer—the atomizer is energized by the battery—the atomizer is heated to evaporate the cigarette liquid into atomized particles. The electronic cigarette liquid has strict requirements on its components: the solvent must be of food or pharmaceutical grade; the flavor for the electronic cigarette must be of high quality. At present, propylene glycol and glycerol are mainly used as the solvent for the electronic cigarette liquid. However, the smoke formed by such electronic cigarette liquid is greasy. In addition, glycerol is characterized by water absorption, readily renders a dry throat of the smoker, and thus results in a poor experience of the smoker.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a solvent for electronic cigarette liquid and an electronic cigarette liquid. The smoke formed by the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention is not greasy, neither too dry nor too wet.

The present invention provides a solvent for electronic cigarette liquid, comprising sorbitol.

Preferably, the mass concentration of sorbitol is 60 wt %˜70 wt %.

Preferably, the solvent for electronic cigarette liquid further comprises one or more of propylene glycol, glycerol, and mannitol.

Preferably, the solvent for electronic cigarette liquid comprises the following components:

35 wt %˜63 wt % of sorbitol;

10 wt %˜50 wt % of propylene glycol;

15 wt %˜27 wt % of water.

Preferably, the solvent for electronic cigarette liquid comprises the following components:

21 wt %˜35 wt % of sorbitol;

50 wt %˜70 wt % of glycerol;

9 wt %˜15 wt % of water.

Preferably, the solvent for electronic cigarette liquid comprises the following components:

10.5 wt %˜35 wt % of sorbitol;

10 wt %˜50 wt % of propylene glycol;

25 wt %˜40 wt % of glycerol;

4.5 wt %˜15 wt % of water.

Preferably, the solvent for electronic cigarette liquid comprises the following components:

21 wt %˜63 wt % of sorbitol;

10 wt %˜70 wt % of mannitol;

9 wt %˜27 wt % of water.

The solvent for electronic cigarette liquid comprises the following components:

7 wt %˜28 wt % of sorbitol;

10 wt %˜30 wt % of propylene glycol;

5 wt %˜30 wt % of glycerol;

15 wt %˜30 wt % of mannitol;

3 wt %˜12 wt % of water.

The present invention provides an electronic cigarette liquid, comprising a flavor and/or fragrance and the solvent for electronic cigarette liquid as described in the above technical solutions.

Preferably, the mass ratio of the flavor and/or fragrance to the solvent for electronic cigarette liquid is (0.001˜0.06): 1.

Preferably, the electronic cigarette liquid further comprises nicotine.

Preferably, the mass content of nicotine is <5 wt %.

The present invention provides a solvent for electronic cigarette liquid, comprising sorbitol. In the present invention, sorbitol is used as the solvent for electronic cigarette liquid. The electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention is not greasy and free of miscellaneous taste, and therefore provides relatively higher comfort level during smoking. Further, the electronic cigarette liquid provided by the present invention may further comprise one or more of propylene glycol, glycerol and mannitol. Due to the effects of propylene glycol, glycerol and mannitol, the sorbitol makes the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention generate a relatively greater amount of smoke and improve the experience of the smoker during savoring. The experiment results show that, the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention provides a thick and full experience, a smooth mouthfeel without miscellaneous taste, and a relatively higher comfort level during smoking. Furthermore, all the components in the solvent for electronic cigarette liquid provided by the present invention are of food grade, and are harmless to the body of the smoker.

DETAILED EMBODIMENTS

The present invention provides a solvent for electronic cigarette liquid, comprising sorbitol.

The solvent for electronic cigarette liquid provided by the present invention comprises sorbitol, which reduces the greasy feeling while smoking the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid. The smoke generated is not greasy, which improves the experience of the smoker. Furthermore, the mouthfeel of smoking is thick, full, smooth, and free of miscellaneous taste, which endows relatively higher comfort level during smoking.

The solvent for electronic cigarette liquid provided by the present invention comprises sorbitol. There is no particular limitation to the source of sorbitol in the present invention, and commercial available products of sorbitol can be used. Preferably, in the present invention, 60 wt %˜70 wt % of sorbitol liquid is used as the solvent of the electronic cigarette liquid. In the present invention, there is no particular limitation to the source of the sorbitol liquid, and commercial available products of sorbitol liquid can be used. In the present invention, the mass concentration of the sorbitol liquid is preferably 60 wt %˜70 wt %, more preferably 62 wt %˜68 wt %. Specifically, in examples of the present invention, the mass concentration of sorbitol may be 60 wt %, 62 wt %, 63 wt %, 65 wt %, 66 wt %, 68 wt %, or 70 wt %.

Preferably, the solvent for electronic cigarette liquid provided by the present invention further comprises one or more of propylene glycol, glycerol, and mannitol. When the solvent for electronic cigarette liquid comprises sorbitol and propylene glycol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises the following components:

35 wt %˜63 wt % of sorbitol;

10 wt %˜50 wt % of propylene glycol;

15 wt %˜27 wt % of water.

When the solvent for electronic cigarette liquid comprises sorbitol and propylene glycol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 35 wt %˜63 wt % of sorbitol, more preferably 40 wt %˜60 wt %, most preferably 45 wt %˜55 wt %. Specifically, in examples of the present invention, the mass content of sorbitol in the solvent for electronic cigarette liquid may be 35 wt %, 40 wt %, 45 wt %, 50 wt %, 55 wt %, 60 wt %, or 60 wt %. In the present invention, sorbitol liquid as described in the above technical solutions is preferably mixed with propylene glycol to obtain the solvent for electronic cigarette liquid, and the mass concentration of the sorbitol liquid will not be described in detail here.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 10 wt %˜50 wt % of propylene glycol, more preferably 15 wt %˜45 wt %, most preferably 20 wt %˜40 wt %. Specifically, in examples of the present invention, the mass content of propylene glycol in the solvent for electronic cigarette liquid may be 10 wt %, 15 wt %, 20 wt %, 25 wt %, 30 wt %, 35 wt %, 40 wt %, 45 wt %, or 50 wt %.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 15 wt %˜27 wt % of water, more preferably 17 wt %˜26 wt %, most preferably 19 wt %˜24 wt %. In the present invention, water is preferably brought by the sorbitol liquid as described in the above technical solutions, and does not need to be added additionally.

In the present invention, when the solvent for electronic cigarette liquid comprises sorbitol and glycerol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises the following components:

21 wt %˜35 wt % of sorbitol;

50 wt %˜70 wt % of glycerol;

9 wt %˜15 wt % of water.

When the solvent for electronic cigarette liquid comprises sorbitol and glycerol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 21 wt %˜35 wt % of sorbitol, more preferably 25 wt %˜30 wt %. Specifically, in examples of the present invention, the mass content of sorbitol in the solvent for electronic cigarette liquid may be 21 wt %, 25 wt %, 30 wt %, 33 wt %, or 35 wt %. In the present invention, sorbitol liquid as described in the above technical solutions is preferably mixed with glycerol to obtain the solvent for electronic cigarette liquid, and the mass concentration of the sorbitol liquid will not be described in detail here again.

When the solvent for electronic cigarette liquid comprises sorbitol and glycerol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 50 wt %˜70 wt % of glycerol, more preferably 55 wt %˜65 wt %. Specifically, in examples of the present invention, the mass content of glycerol in the solvent for electronic cigarette liquid may be 50 wt %, 55 wt %, 60 wt %, 65 wt %, or 70 wt %.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 9 wt %˜15 wt % of water, more preferably 10.5 wt %˜13 wt %. In the present invention, water is preferably brought by the sorbitol liquid as described in the above technical solutions, and there is no need to add additionally.

In the present invention, when the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, and glycerol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises the following components:

10.5 wt %˜35 wt % of sorbitol;

10 wt %˜50 wt % of propylene glycol;

25 wt %˜40 wt % of glycerol;

4.5 wt %˜15 wt % of water.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, and glycerol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 10.5 wt %˜35 wt % of sorbitol, more preferably 15 wt %˜30 wt %, most preferably 20 wt %˜25 wt %. Specifically, in examples of the present invention, the mass content of sorbitol in the solvent for electronic cigarette liquid may be 10.5 wt %, 15 wt %, 20 wt %, 25 wt %, 30 wt %, or 35 wt %. In the present invention, sorbitol liquid as described in the above technical solutions is preferably mixed with propylene glycol and glycerol to obtain the solvent for electronic cigarette liquid, and the mass concentration of the sorbitol liquid will not be described in detail again.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 10 wt %˜50 wt % of propylene glycol, more preferably 15 wt %˜45 wt %, most preferably 20 wt %˜40 wt %. Specifically, in examples of the present invention, the mass content of propylene glycol in the solvent for electronic cigarette liquid may be 10 wt %, 15 wt %, 25 wt %, 30 wt %, 35 wt %, 40 wt %, 45 wt %, or 50 wt %.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 25 wt %˜40 wt % of glycerol, more preferably 30 wt %˜35 wt %. Specifically, in examples of the present invention, the mass content of glycerol in the solvent for electronic cigarette liquid may be 25 wt %, 30 wt %, 35 wt %, or 40 wt %.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 4.5 wt %˜15 wt % of water, more preferably 6 wt %˜13 wt %, most preferably 8.5 wt %˜11 wt %. In the present invention, water is preferably brought by sorbitol liquid as described in the above technical solutions, and there is no need to add additionally.

In the present invention, when the solvent for electronic cigarette liquid provided by the present invention comprises mannitol, the mass content of mannitol in the solvent for electronic cigarette liquid is preferably 10 wt %˜70 wt %, more preferably 15 wt %˜60 wt %, most preferably 20 wt %˜50 wt %. Specifically, when the solvent for electronic cigarette liquid comprises sorbitol and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises the following components:

21 wt %˜63 wt % of sorbitol;

10 wt %˜70 wt % of mannitol;

9 wt %˜27 wt % of water.

When the solvent for electronic cigarette liquid comprises sorbitol and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 21 wt %˜63 wt % of sorbitol, more preferably 25 wt %˜60 wt %, most preferably 35 wt %˜50 wt %. Specifically, in examples of the present invention, the mass content of sorbitol in the solvent for electronic cigarette liquid may be 21 wt %, 25 wt %, 30 wt %, 35 wt %, 40 wt %, 45 wt %, 50 wt %, 55 wt %, 60 wt %, or 63 wt %. In the present invention, sorbitol liquid as described in the above technical solutions is preferably mixed with mannitol to obtain the solvent for electronic cigarette liquid, and the mass concentration of the sorbitol liquid will not be described in detail here again.

When the solvent for electronic cigarette liquid comprises sorbitol and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 10 wt %˜70 wt % of mannitol, more preferably 20 wt %˜60 wt %, most preferably 30 wt %˜50 wt %. Specifically, in examples of the present invention, the mass content of mannitol in the solvent for electronic cigarette liquid may be 10 wt %, 15 wt %, 20 wt %, 25 wt %, 30 wt %, 35 wt %, 40 wt %, 45 wt %, 50 wt %, 55 wt %, 60 wt %, 65 wt %, 70 wt %.

The solvent for electronic cigarette liquid provided by the present invention preferably comprises 9 wt %˜27 wt % of water, more preferably 10.5 wt %˜26 wt %, most preferably 15 wt %˜22 wt %. In the present invention, water is preferably brought by sorbitol liquid as described in the above technical solutions, and there is no need to add additionally.

Preferably, the solvent for electronic cigarette liquid provided by the present invention preferably comprises sorbitol, propylene glycol, glycerol, and mannitol. When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises the following components:

7 wt %˜28 wt % of sorbitol;

10 wt %˜30 wt % of propylene glycol;

5 wt %˜30 wt % of glycerol;

15 wt %˜30 wt % of mannitol;

3 wt %˜12 wt % of water.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 7 wt %˜28 wt % of sorbitol, more preferably 10 wt %˜25 wt %, most preferably 15 wt %˜20 wt %. Specifically, in examples of the present invention, the mass content of sorbitol in the solvent for electronic cigarette liquid may be 7 wt %, 10 wt %, 15 wt %, 20 wt %, 25 wt %, or 28 wt %. In the present invention, sorbitol liquid as described in the above technical solutions is preferably mixed with propylene glycol, glycerol, and mannitol to obtain electronic cigarette liquid, and the mass concentration of the sorbitol liquid will not be described in detail here again.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 10 wt %˜30 wt % of propylene glycol, more preferably 15 wt %˜25 wt %, most preferably 18 wt %˜22 wt %. Specifically, in examples of the present invention, the mass content of propylene glycol in the solvent for electronic cigarette liquid may be 10 wt %, 15 wt %, 18 wt %, 20 wt %, 22 wt %, 25 wt %, or 30 wt %.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 5 wt %˜30 wt % of glycerol, more preferably 10 wt %˜25 wt %, most preferably 15 wt %˜20 wt %. Specifically, in examples of the present invention, the mass content of glycerol in the solvent for electronic cigarette liquid may be 5 wt %, 10 wt %, 15 wt %, 20 wt %, 25 wt %, or 30 wt %.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 15 wt %˜30 wt % of mannitol, more preferably 20 wt %˜25 wt %, most preferably 22 wt %˜24 wt %. Specifically, in examples of the present invention, the mass content of mannitol in the solvent for electronic cigarette liquid may be 15 wt %, 20 wt %, 22 wt %, 24 wt %, 25 wt %, or 30 wt %.

When the solvent for electronic cigarette liquid comprises sorbitol, propylene glycol, glycerol, and mannitol, the solvent for electronic cigarette liquid provided by the present invention preferably comprises 3 wt %˜12 wt % of water, more preferably 4 wt %˜11 wt %, most preferably 6 wt %˜9 wt %. In the present invention, water is preferably brought by sorbitol liquid as described in the above technical solutions, and there is no need to add additionally.

There is no particular limitation to the process of preparing the solvent for electronic cigarette liquid of the present invention, as long as the components of the solvent for electronic cigarette liquid as described in the above technical solutions are mixed evenly.

The present invention provides an electronic cigarette liquid, comprising a flavor and/or fragrance and the solvent for electronic cigarette liquid as described in the above technical solutions.

The electronic cigarette liquid provided by the present invention comprises a flavor and/or fragrance. There is no particular limitation to the type and source of the flavor and/or fragrance of the present invention, and the flavor and/or fragrance for cigarettes well known to a person skilled in the art can be used. In the present invention, the flavor and/or fragrance preferably comprises one or a mixture of two or more selected from the group consisting of tobacco extract, tobacco flavor, flue-cured tobacco flavor, peppermint flavor, strawberry flavor, grape flavor, bean flavor, coffee flavor, mango flavor, apple flavor, and blueberry flavor. In the examples, those skilled in the art can add an appropriate flavor and/or fragrance according to personal preferences and/or market requirement, and there is no particular limitation in this regard in the present invention. In the present invention, the mass ratio of the flavor and/or fragrance to the solvent for electronic cigarette liquid is preferably (0.001˜0.06):1, more preferably (0.03˜0.05):1, most preferably (0.035˜0.045):1.

Preferably, the electronic cigarette liquid provided by the present invention further comprises nicotine. There is no particular limitation to the source and amount of addition of nicotine in the present invention, the nicotine and the amount thereof in the electronic cigarette liquid well known to a person skilled in the art can be used. In the present invention, the mass content of nicotine is preferably <5%, more preferably ≦4%, most preferably ≦3.5%.

There is no particular limitation to the process of preparing the electronic cigarette liquid of the present invention, and those technical solutions for preparing an electronic cigarette liquid well known in the art can be used. For example, the above described flavors for cigarettes, nicotine, and the solvent for electronic cigarette liquid as described in the above technical solutions can be mixed evenly to obtain the electronic cigarette liquid provided by the present invention. In the present invention, the flavor and/or fragrance and nicotine are preferably added to the solvent for electronic cigarette liquid, and the mixture is mixed evenly to obtain the electronic cigarette liquid.

Organoleptic and mouthfeel evaluations of the electronic cigarette liquid of the present invention indicate that, smoke generated by the electronic cigarette liquid provided by the present invention is not greasy, and the amount thereof during smoking is relatively greater, which improves the experience of the smoker. In addition, the electronic cigarette liquid provided by the present invention is slightly sweet, and the mouthfeel thereof is thick, full, smooth, free of miscellaneous taste, and improves the comfort level of the smoker.

To further illustrate the present invention, the solvent for electronic cigarette liquid and the electronic cigarette liquid provided by the present invention will be described in detail in conjunction with the examples as follows, which, however, cannot be construed as a limitation to the protection scope of the present invention.

In the following examples and comparative examples, propylene glycol, glycerol, sorbitol liquid, flavor and/or fragrance, and nicotine are all commercial available products.

Example 1

To 70 wt % by mass of sorbitol liquid was added 2 wt % of flavor and/or fragrance and 4 wt % of nicotine by mass of the sorbitol liquid. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 2

Propylene glycol and 70 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent for electronic cigarette liquid was 10 wt %, and the mass content of sorbitol liquid was 90 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 2 wt % of flavor and/or fragrance and 4 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 3

Propylene glycol and 65 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 50 wt %, and the mass content of the sorbitol liquid was 50 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 6 wt % of flavor and/or fragrance and 4.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 4

Propylene glycol and 68 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 30 wt %, and the mass content of the sorbitol liquid was 70 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 3 wt % of flavor and/or fragrance and 3.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 5

Propylene glycol, glycerol, and 67 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 25 wt %, the mass content of glycerol was 25 wt %, and the mass content of the sorbitol liquid was 50 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 4 wt % of flavor and/or fragrance and 3 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 6

Propylene glycol, glycerol, and 60 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 50 wt %, the mass content of glycerol was 30 wt %, the mass content of the sorbitol liquid was 20 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 5 wt % of flavor and/or fragrance and 3 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 7

Propylene glycol, glycerol, and 69 wt % of sorbitol liquid were mixed, such that the mass concentration of propylene glycol in the resultant solvent was 30 wt %, the mass content of glycerol was 40 wt %, and the mass content of the sorbitol liquid was 30 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 5.5 wt % of flavor and/or fragrance and 2 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 8

Propylene glycol, glycerol, and 62 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 40 wt %, the mass content of glycerol was 35 wt %, and the mass content of the sorbitol liquid was 25 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 6 wt % of flavor and/or fragrance and 2.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 9

Glycerol and 60 wt % of sorbitol liquid were mixed, such that the mass content of glycerol in the resultant solvent was 65 wt %, and the mass content of the sorbitol liquid was 35 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 3 wt % of flavor and/or fragrance and 3.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 10

Glycerol and 70 wt % of sorbitol liquid were mixed, such that the mass concentration of glycerol in the resultant solvent was 70 wt %, and the mass content of the sorbitol solution was 30 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 2 wt % of flavor and/or fragrance and 4 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 11

Glycerol and 65 wt % of sorbitol liquid were mixed, such that the mass content of glycerol in the resultant solvent was 60 wt %, and the mass content of the sorbitol liquid was 40 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 6 wt % of flavor and/or fragrance and 4.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 12

Mannitol and 70 wt % of sorbitol liquid were mixed, such that the mass content of mannitol in the resultant solvent was 40 wt %, and the mass content of the sorbitol liquid was 60 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 5 wt % of flavor and/or fragrance and 4.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Example 13

Propylene glycol, glycerol, mannitol, and 70 wt % of sorbitol liquid were mixed, such that the mass content of propylene glycol in the resultant solvent was 20 wt %, the mass content of glycerol was 18 wt %, the mass content of mannitol was 23 wt %, and the mass content of the sorbitol liquid was 39 wt %. The resultant mixture was mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 3.5 wt % of flavor and/or fragrance and 3 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Comparative Example 1

50 wt % of propylene glycol and 50 wt % of glycerol were mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 2 wt % of flavor and/or fragrance and 4 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Comparative Example 2

10 wt % of propylene glycol and 90 wt % of glycerol were mixed evenly to obtain a solvent for electronic cigarette liquid.

To the resultant solvent for electronic cigarette liquid was added 6 wt % of flavor and/or fragrance and 4.5 wt % of nicotine by mass of the solvent. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Comparative Example 3

To 100 g of propylene glycol were added 5 g of flavor and/or fragrance and 3 g of nicotine. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquid of the present invention was savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

Comparative Example 4

To 100 g of glycerol were added 4.5 g of flavor and/or fragrance and 3.5 g of nicotine. The resultant mixture was mixed evenly to obtain an electronic cigarette liquid.

The obtained electronic cigarette liquids of the present invention were savored, and the results were shown in Table 1. Table 1 shows the savoring results of the electronic cigarette liquids obtained from the examples and comparative examples of the present invention.

TABLE 1 Savoring results of electronic cigarette liquids obtained from examples and comparative examples of the present invention Organoleptic evaluation Mouthfeel evaluation Examples Color Amount of smoke Taste Comfort level Example 1 Colourless Moderate Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 2 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 3 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 4 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 5 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 6 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 7 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 8 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 9 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 10 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 11 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 12 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Example 13 Colourless Relatively greater Slightly sweet Thick, full, not greasy, smooth mouthfeel, free of miscellaneous taste Comparative Colourless Moderate Slightly sweet A little dry, not smooth example 1 Comparative Colourless Moderate Sweet, heavy Heavy greasy taste with miscellaneous example 2 taste of glycerol taste, not pure Comparative Colourless Moderate Slightly sweet A little dry, not smooth example 3 Comparative Colourless Moderate Sweet, heavy Heavy greasy taste with miscellaneous example 4 taste of glycerol taste, not pure

As can be seen from Table 1, the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention can generate a relatively greater amount of smoke which is slightly sweet, and provide a thick, full, smooth mouthfeel without any miscellaneous taste, and therefore improves the experience of the smoker.

As is known from the above examples, the solvent for electronic cigarette liquid provided by the present invention comprises sorbitol. In the present invention, sorbitol is used as the solvent for electronic cigarette liquid. The electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention is not greasy and free of miscellaneous taste, and therefore provides relatively higher comfort level during smoking. Further, the electronic cigarette liquid provided by the present invention may further comprise one or more of propylene glycol, glycerol, and mannitol. Due to the effects of propylene glycol, glycerol, and mannitol, the sorbitol makes the electronic cigarette liquid which is prepared with the solvent for electronic cigarette liquid provided by the present invention generate a relatively greater amount of smoke, improve the experience of the smoker, and provide a thick and full experience, a smooth mouthfeel without any miscellaneous taste, and a relatively higher comfort level during smoking. Furthermore, all the components in the solvent for electronic cigarette liquid provided by the present invention are of food grade, and are harmless to the body of the smoker.

Illustration of the above examples is only to help understanding the process and the core concept of the present invention. It is to be noted that, a person skilled in the art can further make various improvements and modifications to the present invention without departing from the principle of the present invention, which also fall within the protection scopes of the claims of the present invention. Many modifications of these examples would be obvious to a person skilled in the art, and the general principle defined herein can be achieved in other examples without departing from the spirit or scope of the present invention. Accordingly, the present invention will not be limited to the examples described herein, but should comply with the broadest scope which is consistent with the principle and novel characteristics disclosed herein. 

1. A solvent for electronic cigarette liquid, characterized in that the solvent for electronic cigarette liquid comprises sorbitol.
 2. The solvent for electronic cigarette liquid according to claim 1, characterized in that the mass concentration of sorbitol is 60 wt %˜70 wt %.
 3. The solvent for electronic cigarette liquid according to claim 1, characterized in that the solvent for electronic cigarette liquid further comprises one or more of propylene glycol, glycerol and mannitol.
 4. The solvent for electronic cigarette liquid according to claim 3, characterized in that the solvent for electronic cigarette liquid comprises the following components: 35 wt %˜63 wt % of sorbitol; 10 wt %˜50 wt % of propylene glycol; 15 wt %˜27 wt % of water.
 5. The solvent for electronic cigarette liquid according to claim 3, characterized in that the solvent for electronic cigarette liquid comprises the following components: 21 wt %˜35 wt % of sorbitol; 50 wt %˜70 wt % of glycerol; 9 wt %˜15 wt % of water.
 6. The solvent for electronic cigarette liquid according to claim 3, characterized in that the solvent for electronic cigarette liquid comprises the following components: 10.5 wt %˜35 wt % of sorbitol; 10 wt %˜50 wt % of propylene glycol; 25 wt %˜40 wt % of glycerol; 4.5 wt %˜15 wt % of water.
 7. The solvent for electronic cigarette liquid according to claim 3, characterized in that the solvent for electronic cigarette liquid comprises the following components: 21 wt %˜63 wt % of sorbitol; 10 wt %˜70 wt % of mannitol; 9 wt %˜27 wt % of water.
 8. The solvent for electronic cigarette liquid according to claim 3, characterized in that the solvent for electronic cigarette liquid comprises the following components: 7 wt %˜28 wt % of sorbitol; 10 wt %˜30 wt % of propylene glycol; 5 wt %˜30 wt % of glycerol; 15 wt %˜30 wt % of mannitol; 3 wt %˜12 wt % of water.
 9. An electronic cigarette liquid, comprising a flavor and/or fragrance and the solvent for electronic cigarette liquid according to claim
 1. 10. The electronic cigarette liquid according to claim 9, characterized in that the mass ratio of the flavor and/or fragrance to the solvent for electronic cigarette liquid is (0.001˜0.06):1. 